Steam-trap.



PATENTED APR. 14, 1908.

J. E. SWENDEMAN. STEAM TRAP.

APPLICATION TILBD APR-.15, 1907.

2 SHEETS-SHEET 1.

No. 884,626. PATBNTED APR. 14, 1908. J. E. SWBNDEMAN.

STEAM TRAP.

APPLIUATION FILED APB.15. 1907.

2 SHEETS-SHEET 2.

JOSEPH E. SWENDEMAN, OF BOSTON, MASSACHUSETTS.

STEAM-TRAP.

Specification of Letters Patent.

4Patented April 14, 190,8.

Application led April 15, 1907. Serial No. 368,225.

To all lwhom it may concern:

Be 1t known that 1, Josnrn E. SWENDE- MAN, a citizen of the United States, residing and arrangement of parts set forth in the following speciiication and particularly pointed out in the claims thereof.

Referring to the drawings: Figure 1 is a central longitudinal sectional elevation o`l' a steam trap embodying my invent-ion, the valve operating mechanism being shown in full lines in the position which it occupies when the valve is closed and in dotted lines in the open position. Fig. 2 is a plan section taken on line 2-2 of Fig. 1. Fig. 3 is an eni larged detail section, partly in elevation,

taken on line 3 3 of Fig. 2.

Like numerals refer to like parts' through* out the several views of the drawings.

In the drawings, 5 in a shell or reservoir and 6 is an inlet ipe through which the steam and water oi) condensation from the radiatorsof a heating plant or other source may enter thetrap. A cover plate 7 forming a part of the shell 5 is bolted to the body portion 8 of said shell in such a manner as to make the device easily assembled or disassembled. A support 9 is provided with a screwthreaded stem or pipe 1() which is screwed into an outlet hole 11, said outlet hole being adapted to be connected with a pipe through which the water from the trappasses to a hot-well, tank,`or other receiver, the outlet 11 being at all times below the surface of the water in the trap. A valve seat l12 is screwed into the sup ort 9 and may be readily removed there om and replaced by another in case of wear. A valve member or stem 13 is slidably arranged in the sup ort 9 to move toward and away from the va veseat 12, said member being provided with' conical valves 14 and 15 formed on its ends, said vmenber.

being also provided with'holes 16 endl?.

The stem 13 is adapted t'o slide in bearings 18, 18't0ward and away from the valve seat 12.

19 is a toggle consisting of a long member 20 and a short member 21, said long member being pivotally comiected to the valve stem 13 by a pin 22 which asses through said stem and through a forli) 23 formed on said member. The member or link 20 is pivoted at 24 to the-member or arm 21 between the endsof said arm. The arm 2l is pivoted at 25 to the support 9, the other end of said arm being provided with a pin 26 which passes therethrough. 'A float lever 27 is provided with a forked end 28 pivoted at 29 to the support 9, said forked end being provided with slots 30, 30 in which the ends of the pin 26 are located. A hollow iioat 31 is. fast to the float lever 27 and as the level of the water in the shell 5 is raised and lowered said float is adapted to rock said float lever on its pivot 29.

ln Fig. 1 the parts are shown in full lines when the float 31 is in its lowermost position and the valve 15 in contact with the seat 12 while 'the dotted lines show the position that the parts occupy when the float 31 is in its uppermost position. The shell 5 is provided at the bot-tom with a sediment chamber 32 which consists in a depression extending longitudinally of said shell there being a screw plug 33 which may be removed in order to remove sediment therefrom.

The general o eration of the trap hereinbefore specificallyr described is as follows: The parts being in the position shown in full lines, F ig. 1, with the water at its lowest level and the valve 15 againstthe seat 12, as the water of condensation begins to fill the 'shell or reservoir 5 the oat 31. rises thereby rocking the float lever 27 on its pivot, thereby acting through the to gle 19 to graduall move the valve 15 away omits seat 12. t will be seen that as the float 31 rises toward the position shown in dotted lines the pivotal pins 26 and 24 ap roach a plane A-A containing the axes o 'the pivotal ins 25 and29 and when the parts have reac ed the position shown in dotted lines it will be seen that the axes of all of said pins lie in said plane A-A. It will be seen by this arrangement greatpower is obtained and the mechanism is capable of openingsthe valve against great ressure. It will a o be understood that t e valve is-moved positively in both sup ort, one of said members being provided Wit a projection located in said slot.

2. In a steam trap a reservoir having an inlet and an outlet orifice, an outlet valve seat, a fixed support, an outlet valve having a stem slidably arranged in said support to move toward' and away from said seat, a lioat lever pivotally mounted on said support, an arm connected at one end to said oat lever, and at its other end ivotally connected to said support, and a link pivotally connected at one end to said stem and at its other end pivotally connected to said arin hetween the ends of said arm.

3. In a steam trap a reservoir having an inlet and an outlet orifice, an outlet valve seat, a fixed support, an outlet valve having a stem slidably arranged in said support to move toward and away from said seat, a float lever pivotally mounted on said support, said lever provided with a slot, an arm provided at one end wit-h a projection located in said slot, the other end of said arm being pivotally connected to said support, and a link pivotally connected at one end to said stem and at its other end pivotally connected to said arm;

4. In a steam trap a reservoir having an inlet and an outlet orifice, an outlet valve.

5. In a steam trap a reservoir having an inlet' and an outlet orifice, an outlet valve seat, a fixed support, an outlet valve having a stem slidably arranged in said support to move toward and away from said seat, a

float lever having a forked end pivotally mounted on said support, said end being provided with slots, an arm which said forked end straddle's, one end of said arm being provided with projections located in said slots, the other end of said arm being pivotally connected to said support, and a link pivotally connected at one end to said stein and at its other end pivotalluiT connected to said arm.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- UGSSCS.

JOSEPH E. SWENDEMAN. Witnesses:

HENRY J. BoTCHFoRD, Louis A. JoNEs.

ivotally connected to said support,A 

